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Leya [2.2K]
3 years ago
5

Please help will give brainliest and extra points.

Mathematics
1 answer:
Elza [17]3 years ago
7 0

Im not sure about the given data but I plotted the scatter plot based on what I understand on how the data should be presented.

Time (years)

3, 6, 9, 12, 15, 18, 21, 24

Number of participants(x1000)

22, 25, 28, 14, 17, 20,15, 9

Attached is the scatter plot created online.

x = time (years)

y = number of participantep explanation

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musickatia [10]
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galben [10]

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672

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Natalie paid $14.99 to join an online music service. If she purchases 9 songs each month at a cost of $0.99 per song, what will
ycow [4]

Answer:

Natalie Spent $59.54 on songs after 5 months at online music service.

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Songs purchased in 5 months =  

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framing in equation form we get;

Total Amount Natalie spent =  

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5 0
2 years ago
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3 years ago
uppose a large telephone manufacturer has a problem with excessive customer complaints and consequent returns of the phones for
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Step-by-step explanation:

Given:

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At 83\% confidence level the z is ,

\alpha  = 1 - 83\% = 1 - 0.83 = 0.17\\\\\frac{\alpha}{2} = \frac{0.17}{2} = 0.085\\\\Z_{\frac{\alpha}{2}} = Z_{0.085} = 1.3722\\\\n = (\frac{Z_{\frac{\alpha}{2}}}{E})^2 \times \hat{p} \times (1 - \hat{p})\\\\

   = (\frac{1.3722}{0.04})^2 \times 0.5 \times 0.5\\\\= (34.305)^2 \times 0.5 \times 0.5\\\\= 1,176.83 \times 0.5 \times 0.5\\\\= 1,176.83 \times 0.25\\\\=294.2075

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